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Radeon HD 4850 x2

Specifications of the ATI Radeon HD 4850 x2 GPU


Released in November 2008, ATI Radeon HD 4850 x2 desktop Graphics Processing Unit makes use of Unified Superscalar Shader architecture, and is built on 55 nm technology. The cards graphics frequency is 625 MHz. It also has 1600 stream processors, 80 texture units, along with 32 color ROPs. The Radeon HD 4850 x2 incorporates 2 GB of GDDR3 memory, using 256 bit bus. The memory is clocked at 993 MHz, which results in 127.1 GB/s memory bandwidth. The GPU supports PCI Express 2.0 interface, and uses 2 motherboard slots.

More detailed specifications of the ATI Radeon HD 4850 x2 graphics card are available below.

Name / Brand / Architecture

Manufacturer:ATI
Model:Radeon HD 4850 x2
Reference card?:Yes
Target market segment:Desktop
Die name:2 x RV770 Pro
Architecture:Unified Superscalar Shader Architecture
Fabrication process:55 nm
Transistors:956 million
Bus interface:PCI-E 2.0 x 16
Launch date:November 2008

Frequency

Graphics clock:625 MHz

Memory specifications

Memory size:2 x 512 MB or 2 x 1 GB
Memory type:GDDR3
Memory clock:993 MHz
Memory clock (effective):1.986 GHz
Memory interface width:2 x 256-bit
Memory bandwidth:127.1 GB/s

Cores / Texture

Color ROPs:2 x 16
Stream processors:2 x 800
Texture units:2 x 40
Texture fetches / clock cycle:Up to 160
Textures/pixel:Up to 128
RAMDACs:400 MHz
Decoders:DivX
H.264
MPEG 1
MPEG-2
VC-1

SLI / Crossfire

Maximum crossfire options:4-way

Electric characteristics

Maximum power draw:250 W

Video features

Multi-monitor:Up to 2 displays
Maximum digital resolution:2560 x 1600
Maximum DVI resolution:2560 x 1600
Maximum HDMI resolution:1920 x 1200
Maximum VGA resolution:2048 x 1536
Anti-Aliasing technologies:24 x CFAA
8 x MSAA
Adaptive MSAA & SSAA
HDMI:Yes
HDMI version:1.3

Performance

Pixel fill rate:2 x 10 Gigapixels/s
Texture fill rate:2 x 25 Gigatexels/s
Single presision compute power:2 x 1000 GFLOPS
Double precision compute power:2 x 200 GFLOPS

External connectors

Standard display connectors:2 x Dual-Link DVI
DisplayPort
HDMI
Power connectors:1 x 6-pin
1 x 8-pin
Audio input for HDMI:Yes

Dimensions

Length:10.51 inches (267 mm)
Width:Dual-Slot

Other features / Support

Other features:ATI/AMD PowerPlay
HDCP
High Dynamic Range (HDR) Support
Open CL support:1.0
OpenGL support:3.3
DirectX support:10.1
Shader model:4.1
Windows driver support:Windows 7
Windows Vista
Windows XP

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